AbuJahl was one among the leaders of Quraish, and among the chieftains that in varying degrees kept a relentless hostility towards the Muslims.
When a Muslim convert was discovered among the hierarchy of a tribe, AbuJahl would reprimand the convert and then ridicule him in front of his fellow tribesmen so that he lost their respect.
Abū Jahl beat Zinnira for her conversion to such an extent that she lost her eyesight.
Abu Talib raised and supported the Islamic prophet Muhammad while he was a young man.
Abu Talib also protected Muhammad against other sub-clans of Banu Quraish, who were the enemies of the Islamic Prophet Mohammed.
Sunnis hold the view that Abu Talib never recited the Shahadah, or testament of faith, so was a non-Muslim, but that he would receive the most lenient punishment on the day of judgement from amongst those who would be banished to Hell.